727 results about "Optical instrument" patented technology

The invention relates to an additive manufacturing method and application of an aluminum-based silicon carbide composite material complex component, and the additive manufacturing method of the aluminum-based silicon carbide composite material complex component comprises the following steps: step 1, uniformly mixing silicon carbide powder and aluminum alloy powder, and drying; 2, establishing a structural model for the target part, and importing the structural model into selective laser melting forming equipment; thirdly, selective laser melting forming is conducted; fourthly, linear cutting and surface treatment are conducted; and fifthly, hot isostatic pressing treatment is conducted. The invention further provides application of the aluminum-based silicon carbide composite material complex component to precise structural components such as aviation structural components, guided missile and satellite components and optical instruments. According to the method, the problem of subsequent large-allowance removal of the aluminum-based silicon carbide composite material component is solved, the wettability between the aluminum alloy and the silicon carbide particles is improved, the mechanical property meets the application requirement, and the aluminum-based silicon carbide structural component with stable performance is obtained.

The invention relates to the technical field of intelligent precision calibration of optical instruments, in particular to a primary and secondary mirror calibration method based on a neural network algorithm, which comprises the following steps: step 1, synchronously acquiring multi-physics field coupling data of primary and secondary mirrors; step 2, constructing a dual-mode neural network model, wherein the dual-mode neural network model comprises a first model and a second model; 3, kinematics feasibility verification and dynamic optimization are carried out on the initial prediction value, specifically, a Lie group space parameterization method is adopted to avoid a rotation freedom degree singular point, and a platform reachable working space is adjusted through Jacobian matrix verification; and 4, driving a secondary mirror adjustment platform based on the optimized adjustment parameters, and triggering online incremental learning of the neural network model according to the actual wavefront residual error. Through innovative application of the neural network algorithm, multiple technical problems of a traditional optical system calibration method in an extreme environment and a high-frequency dynamic condition are solved, and the calibration precision, the real-time performance and the efficiency are improved through self-learning and self-adaptive capabilities.

A neurosurgery system for probing brain tissue of a patient for tumorous tissue. The system including a suction tool, an excitation source, an optical instrument, and a controller. The suction tool including a suction cannula defining a lumen, an optical fiber configured to transmit fluorescence emitted by the brain tissue; and an indicator configured to selectively emit visible light. An excitation source is configured to emit an excitation light having a wavelength to induce the fluorescence in the tumorous tissue. The optical instrument is coupled to the optical fiber. The optical instrument configured to convert the fluorescence emitted by the brain tissue and transmitted by the optical and configured to determine that the brain tissue is tumorous based on the electrical signal and activate the indicator based on the determination.

The invention discloses a portable long-distance automatic focusing laser emission system, and relates to the technical field of automatic focusing of optical instruments. The system comprises a ranging and focusing quantization module, a focal length regulation and control module and a light spot quality quantization and regulation and control module. The focusing adaptation degree is obtained through the obtained focusing regulation and control deviation parameter, whether focal length regulation and control are carried out or not is judged, after the focal length is qualified, the light spot regulation and control deviation degree is obtained in combination with the light spot quality parameter obtained in the pre-emission process of the laser emitter, and whether light spot regulation and control are carried out or not is judged. After the light spot is qualified, a laser emission wire-mounted foreign matter removing instruction is sent to carry out laser emission for removing the target object, so that the focusing and emission precision and the light spot form in the process of emitting laser to remove the target object through the laser emission device are improved; the problem that in the prior art, when the foreign matter on the high-voltage line is removed through laser, the focusing and transmitting precision is low due to the fact that position fluctuation of the foreign matter is not fully considered is solved.

Methods and apparatus for quantifying an injected volume in an area of tissue during a medical procedure. In one example, a method includes determining a pixel-to-size scale parameter based on a pixelated image of a reference object included in a FOV of an optical instrument configured to perform volumetric imaging, the FOV further including an injection site; computing a first 3D model of the injected volume in the area of tissue based on a volumetric image of the FOV obtained using the optical instrument; refining the first 3D model to obtain a second 3D model of the injected volume, the refining including correcting a shape and a size of the first 3D model to reduce distortions associated with light refraction at a boundary of the injected volume in the area of tissue; and calculating a value of the injected volume based on the second 3D model and further based on the pixel-to-size scale parameter.

The present embodiment relates to a lens driving device including: a first movable element including a bobbin and a first coil; a second movable element including a housing and a first magnet; a base disposed below the housing; a board including a circuit member having a second coil; an upper elastic member; and a support member, wherein the bobbin includes a first stopper and a second stopper, which overlap the second movable element in an optical axis direction and are spaced apart from each other, the housing includes side parts and corner parts formed between the side parts, a first stopper is disposed on the side of the corner parts, the second stopper is disposed on the side of the side parts, and the distance between the first stopper and the second movable element in the optical axis direction is different from the distance between the second stopper and the second movable element in the optical axis direction.

The invention belongs to the field of optical instruments, and particularly relates to a fast reflecting mirror device. The device comprises a base, N flexible lever amplification mechanisms, N piezoelectric ceramic drivers, a flexible supporting table, a reflecting mirror and N displacement detectors, the fixed ends of the N flexible lever amplification mechanisms are connected with the same side of the base. The N piezoelectric ceramic drivers are installed in the installation spaces of the N flexible lever amplification mechanisms respectively, the installation ends of the N piezoelectric ceramic drivers are connected with the fixed ends of the flexible lever amplification mechanisms, and the driving ends of the N piezoelectric ceramic drivers are connected with the amplification ends of the flexible lever amplification mechanisms. The N displacement detectors are installed at the free ends of the N flexible lever amplification mechanisms correspondingly. The flexible supporting table is provided with a connecting face and N connecting ends, and the N connecting ends are connected with the free ends of the N flexible lever amplifying mechanisms correspondingly. The reflector is connected to the connecting surface. The deflection range of the reflector can be effectively improved.

The invention provides a double-optical-path split type continuous zooming thermal infrared imager adjustment method, and belongs to the technical field of precision optical instrument adjustment, and the adjustment method comprises the steps: taking a base front end reference surface of a fixed focal length optical path as a total adjustment reference, carrying out the imaging adjustment of the fixed focal length optical path, and then carrying out the imaging adjustment of a continuous zooming optical path, and adjustment is carried out according to the sequence of parfocal adjustment, optical axis consistency adjustment and optical axis and detector center position adjustment, so that imaging adjustment of the double-optical-path split type continuous zooming thermal infrared imager is completed. By adopting the method, the adjustment difficulty of the double-optical-path split type continuous zooming thermal infrared imager is effectively reduced, the repetition of the installation and adjustment process is reduced, and the imaging adjustment efficiency and quality of the double-optical-path split type continuous zooming thermal infrared imager are improved.

The invention discloses a low-absorption high-emission radiation refrigeration coating material, which comprises a bottom coating and a surface coating, the bottom coating comprises BaSO4 with different particle sizes and a film forming substance, and the surface coating comprises a surface layer filler and a film forming substance. The invention also discloses a preparation method of the material, which comprises the following steps: dispersing and mixing BaSO4 with different particle sizes, a film-forming substance and a solvent to obtain bottom layer slurry, and filtering to obtain a bottom layer coating; dispersing and mixing a surface layer filler, a film-forming substance and a solvent to obtain surface layer slurry, and filtering to obtain a surface layer coating; the prime paint is sprayed on the surface of the base material, and then the surface paint is sprayed on the surface of the prime paint; and curing to obtain the coating. The material has excellent solar spectrum reflection performance, high infrared radiation performance of an atmospheric window and relatively good ultraviolet aging resistance, and can be applied to multiple fields of high-end optical instrument detection, communication electronics, petrochemical engineering, energy-saving buildings and the like.

The invention discloses a miniature camera and laser common-caliber optical system and a use method, and relates to the field of laser optical instruments. The problem that an existing multi-band common-caliber optical system cannot achieve integration, multi-functionalization and miniaturization at the same time is solved. The miniature camera and laser common-aperture optical system comprises a zoom optical lens group, a beam expanding telescope group, an electromagnetic galvanometer, a spectroscope, a fast reflecting mirror and a laser light source. The laser converging zoom optical lens group and the fine tracking imaging branch are respectively connected with the zoom cam lens cone and the fine tracking lens cone, the beam expanding telescope group is connected with the antenna frame, and the electromagnetic galvanometer, the spectroscope and the reflector are all connected with respective bases. The optical axis collinear coupling design is adopted among the components, it is ensured that a laser path and an image path are completely overlapped, and high-precision image guide striking control is achieved. The small mobile platform is suitable for industrial precision machining and rapid identification, high-precision tracking and laser precise striking of short-range dynamic targets.

The invention provides an illumination supplementing device for assisting breeding of pheasant virens, and relates to the technical field of optical instruments.The illumination supplementing device comprises a shell, and the shell is provided with a light path channel in a communicating mode; the parallel light generating mechanism is arranged at the tail part of the light path channel; the light condensation adjusting mechanism is arranged in the middle of the light path channel; the light spot amplification mechanism is arranged at the head part of the light path channel; the simulation regulation and control mechanism is arranged in the shell, and the simulation regulation and control mechanism is connected with the parallel light generation mechanism. The simulation regulation and control mechanism regulates and controls the illumination intensity period of parallel light so as to simulate the period of natural illumination, light spots are refracted and amplified through the light spot amplification mechanism and then are subjected to illumination supplementation, and the size of the light spots projected on the light spot amplification mechanism can be adjusted through the light condensation adjustment mechanism, so that the illumination intensity of the light spots is adjusted. Therefore, the illumination supplementing range is regulated and controlled, the supplemented illumination is adjusted, and the auxiliary breeding effect of cage rearing of pheasants virens is guaranteed.

The invention relates to the technical field of optical instruments, and discloses a visible-ultraviolet dual-wavelength projection objective lens and an optical system. Comprising a first lens group with positive focal power, a second lens group with negative focal power, a third lens group with positive focal power and a fourth lens group with positive focal power which are sequentially arranged along the optical axis direction from the object plane to the image plane of the projection objective lens; the projection objective lens further comprises an aperture diaphragm, and the aperture diaphragm is located between two adjacent lenses in the third lens group. Through arrangement of the four lens groups and reasonable matching of positive and negative focal powers, effective correction of chromatic aberration is realized, the imaging quality of the optical system is excellent, and the optical system can be adapted to a high-power large-linewidth deep ultraviolet band light source.

The invention provides an optical element six-degree-of-freedom adjusting and clamping device and an assembling method, and relates to the technical field of optical instruments. The device comprises a supporting base, a ball head adjusting screw, a cantilever spring mechanism and an elastic opposite ejection mechanism. The bottom of the support base is provided with a triangular layout through hole group. The center of gravity of the optical element is in the triangle. The cantilever spring mechanism and the ball head adjusting screw are combined to control Z-axis displacement and rotation around the X / Y axis, and the elastic opposite ejection mechanism and the ball head adjusting screw are combined to control X / Y-axis translation and rotation around the Z axis. All contact interfaces adopt a spherical surface-plane point contact design, and tungsten steel or phosphor bronze is selected as a material. According to the invention, six-degree-of-freedom independent precision adjustment of the optical element can be realized, the error of a clamping surface is as low as 0.068 mu rad, the structure is compact, and the adaptability is high.

The utility model provides a semiconductor detection system and a position adjusting device thereof, and belongs to the technical field of optical instrument detection. The position adjusting device provided by the utility model comprises a fixed seat, the movable seat comprises an adjusting part which is movably arranged on the fixed seat along the first direction; the mounting part protrudes out of the adjusting part in the first direction, and a part of the mounting part is located on the side, away from the adjusting part, of the fixing base in the first direction and used for mounting a sensor; and the adjusting mechanism is connected to the adjusting part and is used for driving the adjusting part to move relative to the fixed seat along the first direction so as to adjust the position of the sensor on the mounting part. According to the position adjusting device provided by the invention, the sensor can go deep into the detection position on the surface of the wafer in the semiconductor detection system, so that the detection precision can be remarkably improved.

An apparatus and method for measuring clotting capacity of a patient's blood comprises a probe having a wetted portion, a well to receive a blood sample to contact the wetted portion, a spring element intermediate the wetted portion and a probe support, and a sensor to determine the displacement of the wetted portion resulting from a displacing force imparted to the wetted portion by a clotting blood sample in the well. Embodiments of the apparatus of the present invention may include a variable capacitance displacement sensor, an eddy current variance sensor, a microelectromechanical sensor and an optical instrument. Embodiments of the apparatus may include a current source. The present invention enables reliable detection of mitochondrial dysfunction and sepsis in a blood sample. Embodiments of the apparatus of the invention may be portable. A probe used in such embodiments may be disposable.

The invention provides a printing optical element, a printing method and a far-image optical instrument, and relates to the technical field of far-image optics, the printing optical element comprises a substrate and a patterning layer, the substrate is transparent, and a printing area is arranged on the first side of the substrate; the patterned layer is located in the printing area and comprises a plurality of function parts protruding from the surface of the substrate, and the function parts are formed through UV printing and distributed in a geometric array mode. Wherein the function part is semitransparent and is in a continuous columnar form; the functional part is reflected by the free-form surface mirror to be imaged to an imaging panel of the far-image optical instrument and presents a first imaging surface; and the first imaging surface and a second imaging surface of the far-image optical instrument for amplifying and presenting the object are distributed at an interval. When a user watches magnified information on the second imaging surface, the focal length can be actively adjusted to switch focusing between the first imaging surface and the second imaging surface, so that eyestrain is relieved, and the effect of adjusting crystalline lenses of eyes to prevent and control myopia is achieved.

The present embodiment relates to a lens driving device comprising: a housing; a bobbin arranged in the housing; a magnet arranged in the housing; a first coil moving the bobbin in the optical axis direction; a second coil moving the housing in a first direction perpendicular to the optical axis direction, wherein the magnet interacts with the first coil and the second coil, the second coil includes a first unit coil and a second unit coil, the magnet includes a first magnet interacting with the first unit coil and a second magnet interacting with the second unit coil, and when a distance between the first unit coil and the first magnet increases, a distance between the second unit coil and the second magnet decreases.

The present embodiment relates to a dual camera module, in which a first lens driving device is spaced apart from and arranged in parallel with a second lens driving device, a first Hall sensor of the first lens driving device is disposed is disposed at a corner portion which is spaced most apart from a second sensing magnet of the second lens driving device, among a plurality of corner portions of a first housing; and a second Hall sensor of the second lens driving device is disposed at a corner portion which is spaced most apart from the first Hall sensor, among a plurality of corner portions of a second housing.

An embodiment comprises: a base; a rotor disposed on the base; a ball member disposed between the base and the rotor; a magnet disposed on the rotor; a coil which is disposed on the base so as to face the magnet, and which rotates the rotor by means of interaction with the magnet; a blade part which is connected to the rotor and which has an opening that varies in size by means of the rotation of the rotor; and a first sensor and a second sensor for sensing the displacement of the rotor, wherein the magnet includes a curved surface protruding in the direction toward the coil, and the first sensor and the second sensor face the protruding curved surface of the magnet.

The utility model discloses polishing equipment for optical instrument lens production, which relates to the technical field of optical instrument lens processing and comprises a base, a portal frame is arranged at the top of the base, a material receiving box is arranged in the portal frame, a moving component is arranged in the material receiving box, vertical plates are arranged on two sides of the inner wall of the portal frame, and an adjusting component is arranged on one side of each vertical plate. The moving assembly comprises a rotating rod, the rotating rod is rotationally connected into the receiving box, a rhombus plate is arranged at the top of the rotating rod, sliding rods are arranged on the two sides of the inner wall of the receiving box, moving blocks are slidably connected to the surfaces of the sliding rods, a rotating column is rotationally connected to the top of each moving block, a transverse plate is arranged at the top of each rotating column, and one side of the bottom end of each transverse plate is rotationally connected with the top of the rhombus plate. The optical lens polishing mechanism has the advantages that the two sides of an optical lens can be conveniently clamped at the same time, the optical lens is prevented from deviating from the polishing mechanism in the polishing process, and the polishing effect of the optical lens is prevented from being affected to a certain extent in the polishing process.

The invention discloses a reflection / transmission integrated color filter based on a photonic crystal-dye-transparent polymer composite and a preparation method thereof, and the color filter is composed of an opal photonic crystal template formed by nanometer microspheres and a dye-transparent polymer composite filled in gaps of the opal photonic crystal template. Through compounding of the nano-microspheres, the dye and the transparent polymer, the photonic crystal and the dye can cooperatively filter visible light with specific wavelength, and two filtering modes of reflection and transmission are achieved; the absorption peak width of the photonic crystal can be widened due to the light absorption characteristic of the dye, and a high-purity light filtering effect is generated in a reflection mode; the photonic band gap of the photonic crystal can adjust the light cut-off wave band of the dye, a high-purity light filtering effect is formed in a transmission mode, the photonic crystal-dye-transparent polymer composite reflection / transmission integrated color filter with high-purity color output is finally achieved, the property is stable, and the photonic crystal-dye-transparent polymer composite reflection / transmission integrated color filter has wide application prospects in the fields of display, optical instruments and the like.

The invention provides a microscope automatic focusing method based on an end-to-end model, and relates to the technical field of optical instruments. The method comprises the following steps: shooting an image on a microscope glass slide through an image acquisition module, and carrying out image preprocessing through a gray histogram equalization algorithm; deploying an end-to-end neural network model at the cloud server, receiving the preprocessed image and predicting a first focusing position value; the first focusing position value is sent to an electric focusing module controlled by a stepping motor, and focusing is completed; and acquiring a second image, performing image preprocessing, predicting a second focusing position value by using the end-to-end neural network model, and sending a relative position between the second focusing position value and the first focusing position value to the electric focusing module to complete final automatic focusing. According to the method, the optimal focusing position is directly predicted from the microscopic image through the deep learning model, a traditional focusing scoring function or an image sequence analysis process is simplified, end-to-end efficient prediction is realized, and the focusing speed and precision are remarkably improved.

The invention discloses a space remote sensing target positioning optical system based on multi-aperture imaging and a calibration method, and relates to the field of remote sensing and aerospace imaging optical instruments. The contradiction that the large view field and high-resolution imaging requirements of a traditional single-aperture optical imaging system are difficult to consider at the same time is solved, accurate positioning of a target is achieved, and the intelligent requirement of a multi-aperture optical imaging system is met. The multi-aperture imaging space remote sensing target positioning sub-aperture imaging optical system comprises an electromagnetic galvanometer, a beam shrinkage telescope group, a fast reflecting mirror and a rear focus lens group. The beam shrinking telescope group is connected with the rear focus lens group through a fast reflecting mirror, and a light beam is connected with the imaging branch through an electromagnetic galvanometer. And after passing through the telescopic system, the imaging light beam is reflected by the fast reflecting mirror and then focused to the detector for imaging. The method is also suitable for a mobile platform for carrying out rapid positioning and high-precision capturing on a dynamic target in the fields of industrial precision machining and space remote sensing.

The utility model discloses an optical instrument adjustable pedestal comprising a first T-shaped seat, the surface of the first T-shaped seat is slidably connected with a first sliding seat, the upper surface of the first sliding seat is fixedly provided with a second T-shaped seat, the upper surface of the second T-shaped seat is slidably connected with a second sliding seat, and the middle part of the upper surface of the second sliding seat is fixedly provided with a vertical pipe. A sliding rod is slidably connected into the vertical pipe, and a sleeve is rotatably connected to the surface of the top end of the sliding rod. The first sliding seat, the second sliding seat, the vertical pipe, the sliding rod, the sleeve, the fixing assembly and the mounting assembly are arranged, the optical instrument can be mounted through the mounting assembly, the mounting assembly is located at the top of the sliding rod, and the height of the optical instrument can be changed by moving the sliding rod up and down; the optical instrument can be adjusted in two directions by moving the first sliding seat or the second sliding seat, so that the adjustable base can realize adjustment of the optical instrument in multiple angles, and the use flexibility of the adjustable base is improved.

The present invention provides an optical glass comprising, by weight, 1-12% SiO2, 5-18% B2O3, 40-60% La2O3, 4-20% Y2O3, 1-12% ZrO2, 4-20% Nb2O5, and 4-18% TiO2. Through rational component design, the present invention can produce optical glass with excellent devitrification resistance at a low raw material cost.

The invention discloses a method for obtaining human eye wavefront aberration and a human eye aberration measuring device, and relates to the technical field of optical instruments.The method for obtaining the human eye wavefront aberration is applied to a Hartmann sensor and comprises the steps that an actual slope matrix is obtained through calculation according to a wavefront light spot diagram obtained by the Hartmann sensor; multiplying the generalized inverse matrix of the standard slope matrix by the actual slope matrix to obtain a Zernike coefficient matrix; subtracting the actual slope matrix from the product of the standard slope matrix and the Zernike coefficient matrix to obtain a residual matrix; and updating the Zernike coefficient matrix according to the residual matrix until the residual matrix of the updated Zernike coefficient matrix is smaller than or equal to a preset value. Wherein the standard slope matrix is a matrix formed by wavefront slope of Zernike polynomial full-term superposition. According to the technical scheme provided by the invention, the accuracy of obtaining the wavefront aberration of the human eye can be improved.

The invention relates to the technical field of quantum sensing and optical instruments, and discloses an integrated scanning confocal microscope for diamond NV color center quantum sensing, which comprises a control module, an integrated circuit module, an integrated laser module and an integrated light path module, the control module is used for exciting a diamond NV color center, the integrated light path module realizes two-dimensional scanning of a laser beam on a sample focal plane through a galvanometer, an objective lens is used for collecting NV color center fluorescence, meanwhile, a single-photon counter and a camera are arranged, confocal detection and wide-field microscopic imaging are realized, and the integrated circuit module receives an instruction of the control module. The microscope can realize confocal scanning fluorescence imaging, optical detection magnetic resonance spectrum measurement and NV color center spin coherent control experiments, such as Rabian oscillation, Rahm, Haln echo and spin relaxation experiments, and provides comprehensive experimental ability for diamond NV color center quantum sensing.

Provided are an ophthalmic optical instrument and an optical measurement system. The ophthalmic optical instrument comprises a visual target element, a first lens, a second lens, and a third lens. The first lens and the visual target element are arranged at intervals, and light emitted from the visual target element enters the first lens and exits as parallel light. The second lens is located on one side of the first lens away from the visual target element, and the described parallel light is converged to form an image after passing through the second lens. The third lens is located on one side of the second lens away from the first lens. The ophthalmic optical instrument further comprises a control element connected to the second lens and configured to control the movement of the second lens along its principal optical axis, such that the image formed by the second lens moves to at least one side of the third lens. The second lens in the ophthalmic optical instrument can move along its principal optical axis under the control of the control element, allowing the image formed by the second lens to move accordingly. Therefore, the movement range of the image formed by the second lens is relatively large, thereby improving the measurement range.

The invention relates to an error self-compensation method, device and equipment for rotary filtering and a medium, and belongs to the field of optical instruments. The method comprises the steps that rotary filtering is carried out by regulating and controlling angular displacement of a monochromator, a single-dispersion light beam is obtained, and the single-dispersion light beam covers a single-dispersion wavelength light beam and a multi-dispersion wavelength light beam; the detection wavelength of the single-dispersion light beam is captured, an error self-compensation model is constructed through disturbance wavelengths to carry out error self-compensation, and the disturbance wavelengths cover the thermodynamic disturbance wavelength, the illumination disturbance wavelength, the current disturbance wavelength, the power disturbance wavelength and the mechanical vibration disturbance wavelength. According to the invention, monochromatic light with different wavelengths can be simply, conveniently and efficiently acquired, discontinuous monochromatic light with multiple wavelengths can be acquired, error self-calibration is realized according to multiple factors, and monochromatic light acquisition is more accurate.

The invention provides an optical instrument self-cleaning micro flow cell, and relates to the technical field of optical detection equipment, and the optical instrument self-cleaning micro flow cell comprises a self-cleaning analysis module which is used for analyzing a pollution degree index in a measurement cell, and determining whether to generate a self-cleaning signaling according to the pollution degree index; when it is determined that the self-cleaning signaling is generated, calculating a power adjustment value of the ultrasonic vibrator and a rotating speed adjustment value of the magnetic stirrer; and the control module is used for adjusting the power of the ultrasonic vibrator and the rotating speed of the magnetic stirrer according to the power adjustment value and the rotating speed adjustment value after receiving the self-cleaning signaling. An ultrasonic wave and magnetic force synergistic self-cleaning mode is adopted, a mechanical cleaning device is not needed, damage of mechanical cleaning to the structure and the sealing performance of the flow cell is avoided, the reliability of equipment is improved, the service life of the equipment is prolonged, targeted efficient cleaning is achieved through accurate pollution degree index calculation and self-cleaning parameter adjustment, and the service life of the equipment is prolonged. The cleaning effect can be guaranteed, and energy consumption can be reduced.